Manually-actuated contact switch arrangement for electronic watc

Details Manually-actuated contact switch arrangement for electronic watc Manually-actuated contact switch arrangement for electronic watc

1980-01-18

1982-03-16

Miska, Vit W.

Horology: time measuring systems or devices

Cases

With crown or stem details

200159R, 368321, G04B 2900, H01H 312

Patent

active

043204856

ABSTRACT:
A manually-actuated contact switch arrangement for an electronic watch in which an electronic circuit board is mounted on a base plate fitted within a case, the board having a contact extending therefrom which when electrically connected to the case completes a circuit effecting a command or setting function. The arrangement includes a return spring anchored on the base plate. A section of the free end portion of this spring is received in a transverse groove in a push member displaceably seated within a bore in the case whereby the spring imposes an initial tension on the member to maintain it at a predetermined rest position. By depressing the spring-biased push member, the free end of the spring is caused to engage the contact to close the circuit.

REFERENCES:
patent: 3974351 (1976-08-01), Solou et al.
patent: 3975897 (1976-08-01), Naito
patent: 4031341 (1977-06-01), Wuthrich et al.
patent: 4241441 (1980-12-01), Murata

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